Arch Linux

trevsjordan

Member

Registered: 2017-12-08

Posts: 4

[SOLVED] Uninstalled netctl and dhcpcd & can't connect to internet

Unfortunately, I am new to Arch Linux and deleted netctl and dhcpcd prior to realizing how important they are for network configuration. I have a Dell XPS 13 so there's no way of directly connecting with an ethernet cable, and currently the Insignia USB-Ethernet adapter I have is not working. I do, however, have an Arch Linux iso on a USB, so maybe I would be able to install the base group of packages using that?

Does anyone have any suggestions? Thanks in advance!

Last edited by trevsjordan (2017-12-14 00:38:02)

smlb

Member

From: /dev/null

Registered: 2013-05-20

Posts: 60

Website

Re: [SOLVED] Uninstalled netctl and dhcpcd & can't connect to internet

Just run the live image, mount the partitions and pacstrap `netctl dialog wpa_supplicant dhcpcd` on the mountpoint.

Reboot and you have again your connections tools.

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lo1

Member

Registered: 2017-09-25

Posts: 584

Re: [SOLVED] Uninstalled netctl and dhcpcd & can't connect to internet

pacman -U "pkgname.pkg.tar.xz"

allows to install any pkg downloaded from the official arch repository (and the AUR).
Download both netctl and dhcpcd, copy them to a USB stick/smartphone and you're done.

@smlb suggestion is yet another option to do it.

For the future, you'd better write down the base group to avoid randomly deleting essential packages.

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Slithery

Administrator

From: Norfolk, UK

Registered: 2013-12-01

Posts: 5,776

Re: [SOLVED] Uninstalled netctl and dhcpcd & can't connect to internet

Or you could either arch-chroot into your broken system or use pacmans --root flag and reinstall them from your pacman cache

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No, it didn't "fix" anything. It just shifted the brokeness one space to the right. - jasonwryan
Closing -- for deletion; Banning -- for muppetry. - jasonwryan

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Trilby

Inspector Parrot

Registered: 2011-11-29

Posts: 30,543

Website

Re: [SOLVED] Uninstalled netctl and dhcpcd & can't connect to internet

If you didn't clear your cache, there is a much simpler solution, no need for a live usb (though that will work fine too).  Just reinstall the package from the cache:

pacman -U /var/cache/pacman/pkg/dhcpcd...

fill in the "..." as needed (tab completition should get it for you).

netctl is just a convenience tool, you can connect manually without it, but you can also reinstall that the same way you do dhcpcd from the cache.

EDIT: Slithery, why the chroot?  Not having a netowork connection doesn't render a machine unbootable.

Last edited by Trilby (2017-12-13 21:48:18)

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"UNIX is simple and coherent" - Dennis Ritchie; "GNU's Not Unix" - Richard Stallman

smlb

Member

From: /dev/null

Registered: 2013-05-20

Posts: 60

Website

Re: [SOLVED] Uninstalled netctl and dhcpcd & can't connect to internet

Yeah, forgot that you probably have all the packages in cache if you didn't clear it using `pacman -Scc` or `paccache`.

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Slithery

Administrator

From: Norfolk, UK

Registered: 2013-12-01

Posts: 5,776

Re: [SOLVED] Uninstalled netctl and dhcpcd & can't connect to internet

EDIT: Slithery, why the chroot?  Not having a netowork connection doesn't render a machine unbootable.

Obviously you're correct, I I've not had my coffee yet this morning

Thinking too complicated.

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No, it didn't "fix" anything. It just shifted the brokeness one space to the right. - jasonwryan
Closing -- for deletion; Banning -- for muppetry. - jasonwryan

aur - dotfiles

trevsjordan

Member

Registered: 2017-12-08

Posts: 4

Re: [SOLVED] Uninstalled netctl and dhcpcd & can't connect to internet

Wow, great response time - just marked it as solved, thanks for all the help!